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; VV <br /> Lenna Shockley - 2 - ` August 15, 2011 <br /> • Groundwater Flow Direction: Predominately to the north northeast with an average' <br /> gradient of 0.008 feet/foot. <br /> • -Soil Types: The Site is underlain by interbedded and intermixed sand, silt and clay <br /> Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Depth to Water <br /> (feet bgs) (feet bgs) <br /> Jul 2011 <br /> MW-1 Jun 96 - a 1434 26.45* <br /> MW-2 Jun 96 12-32 27.00 <br /> MW-3 Jun 96 13-33 26.80 <br /> MW-4 Jun 96 8-28 26.65* <br /> -. .MW-5 - Oct 02 10-30 - <br /> �_ MW-6 ._ Jun 08 45-50 27.05 x <br /> MW-7 Jun 08 45-50 26.70 <br /> MW-8 Jun 08 _ _ _15-30_15-30 v ... ..v, 26.58 <br /> MVI!-9 Jun 08 15-30- 26.65 <br /> MW-10 Jun 08 15-30 24.45 <br /> MW-11 _ - _ Jun 08 45-50 29.53 <br /> "Free phase product in site wells <br /> Petroleum Hydrocarbon Constituent Concentration R <br /> Contaminant - Soil.(mg/kg) Water u /L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> * (Aug2011 <br /> TPHg NA NA 270,000 270,000 5 <br /> TPHd NA NA 1,500,000 1,100,000 56 <br /> Benzene NA NA 10 _ X0.5 0.15 <br /> Toluene NA NA 2.7 <0.5- 42 <br /> Eth, Ibenzene NA NA 13 <0.5 29 <br /> Xylenes NA NA 54 <1 -17 <br /> MTBE NA NA 12 NA 5 <br /> TBA NA NA 27 NA 1211,200a <br /> 1,2-DCA NA NA ND NA 0.5 <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> mglkg: milligrams per kilogram, parts per million <br /> ug/L: micrograms per liter, parts per billion <br /> W00s: Water Quality Objectives f <br /> "According to GeoTracker,wells <br /> e California Department of Public Health Notification Level/response Level { <br /> Site Description _ <br /> The Site is located at 850 West Milgeo Road in Ripon, California and is an inactive truck staging <br /> area and fueling facility. The Site is bounded by West Milgeo Road to the north, Highway 99 to <br /> the south, east and west. The surrounding land use commercial. _r <br /> n <br />